baber/WOPTO huggingface dataset:
Patent GB-700346-A (GB)
Title: Automatic lathe
IPC: B23G1/04
Filed: 1949-11-03
Abstract: 700,346. Hollow-spindle tathes ; screw-cutting. SCHWENDENWEIN, K. Nov. 3, 1949, No. 28228/49. Class 83 (3) A single-spindle automatic lathe is arranged to cut screw-threads either by rotating the tool y and the work or by rotating the work only. The tool y may be a tap or a die mounted so as to be self-feeding in a turret r<SP>1</SP>. In Fig. 1, the tool y and the hollow work spindle q are driven at different speeds in the same direction from a belt-driven pulley a to cut right-hand screwthreads. The drive to the turret spindle is through change-gears c, d, a gear f, a hollow toothedcone g freely mounted on a shaft i and frictionally-engaging a double cone v which is splined to the shaft by a spring-pin h, and bevel gears Z2, Z3, Z4, Z5, gear Z2 also driving a drillspindle in the turrent rl. The spindle q is driven from the cone g by a gear mounted freely on a shaft o and meshing with a toothed-cone r which frictionally-drives a double cone w keyed to the spindle. At the end of the screwing operation, the rotational speed of the tool y is reduced to a speed below that of the spindle q so that the tool threads itself off the work. This is effected by a cam shaft, (not shown), which moves the cone v along the shaft i into driving engagement with a hollow cone j driven through gears s, i and change-gears k, l, m, n. With the gear train in this position, left-hand threads may be cut and then the tool backed out by again engaging the cone v with the cone g and shifting the cone w into driving-engagement with a hollow toothed-cone u which is driven by the gear s. In the latter connection, the spindle q is rotated slowly in the clockwise direction and can be used for chasing right-hand threads. The spindle a may be held stationary by sliding the gears s, t out of engagement with the cones j, u and engaging the teeth on the cone u with a detent. Fig. 6 (not shown). To screw-cut with a non- rotating tool, Fig. 2, the bevel gear Z5 is removed and the tool spindle keyed to the turret r1. The cone v is freed on the shaft i and the cone g fixed thereon, while the gear p is moved into engagement with the toothed rim on the cone v. The cones v, w may be shifted between the cones g, j, r, u respectively, to change the speed and direction of rotation of the spindle q which must be reversed to thread the tool off the work. The drill-spindle z is rotated continuously. A detent, Fig. 10, (not shown), may hold the spindle q stationary by engaging the cone j which is coupled to the cone w through the intermediary of the cones v, r and the gear p. Instead of teeth being formed on the cones r, u, they may be coupled to gears or driven by sprockets and chains. The cones g, j, v, w may also be driven by gears coupled thereto.
Patent GB-317665-A (GB)
Title: Method of roasting sulphide minerals
IPC: C22B1/06
Filed: 1928-10-02
Abstract: 317,665. Read, J. B., and Coolbaugh, M. r. Oct. 2, 1928. Roasting; sulphatizing. - Simple or complex sulphide ores, e.g. copper or zinc sulphides mixed with iron lead sulphides, are submitted to an oxidizing roast, the ores and the gases travelling in the same direction through the furnace thereby forming sulphates; towards the end of the roast, a predetermined amount of the same or another sulphide is added, so that a part of the sulphates already formed is tranfortaed into oxide, the temperature of the latter part of the reaction being from 550-700‹ C.
Patent GB-282535-A (GB)
Abstract: 282,535. Wooldridge, G. de L. Nov. 8, 1926. Bulbs; screens within bulbs.-An anti-dazzle device for head lamps of vehicles comprises a tubular opaque shield or screen with substantially parallel sides mounted in or upon the bulb and extending in front of the filament E<1> so as to prevent light rays from passing directly from the filament to the front part of the parabolic reflector B, the whole or part of the inner and outer surfaces of the screen being non-reflecting so as to intercept widely divergent light either before or after reflection. The screen may comprise a coating applied to the lamp bulb at E<4> or it may be separate from and mounted externally upon the bulb at F or inside at G. It may extend wholly over the front of the bulb or an aperture may be left for a narrow beam to issue directly from the bulb.
Patent GB-786541-A (GB)
Title: Permanent magnet field generator
IPC: H02K21/24
Filed: 1955-10-05
Abstract: 786,541. Generators with permanent magnets. KOBER, W. Oct. 5, 1955, No. 28394/55. Class 35. In a generator with the stator and rotor axially displaced side-by-side, the rotor consists of permanent magnets axially disposed and completely surrounded throughout their lengths by highly conductive material such as copper, aluminium or aluminium or magnesium alloy. In Fig. 6 the non-magnetic block 10 has holes to receive the cylindrical magnets 9, the end faces of which, with or without separate polepieces, face the disc type stator 7 shown in Fig. 3 wherein 14 represents a magnetic backplate, while block 10 could be laminated. The magnet assembly could have an outer tube of non-magnetic steel or a sheath formed of binding wire. Other forms show eighteen circumferentially spaced bar magnets of rectangular section and two longitudinally sub-divided magnets of semi-circular section, all axially magnetized. Fig. 2 (not shown) illustrates a machine of known type with the stator surrounding the rotor.
Patent GB-602137-A (GB)
Title: Improvements in and relating to two-stroke internal combustion engines
IPC: F02B33/00
Filed: 1945-10-29
Abstract: 602,137. Two-stroke engines. KNUTZEN, P. Oct. 29, 1945, No. 28597. Convention date, May 20, 1943. [Class 7 (ii)] In a two-stroke engine in which scavenging and super-charging air are separately supplied through cylinder ports 7, 8 from receivers 9, 13, the air is compressed in a cylinder 5 by a crosshead 4 through ports 14, 17 and non-return valves 16, 18. A valve 11 controlling the supply to the port 8 is opened by a projection 19a on an operating cam 19, which also has a small projection 19b momentarily opening the valve to clear the space 10 during the scavenging period.
Patent GB-447726-A (GB)
Title: Apparatus for use in cutting sheet material into sections of predetermined length
IPC: B28B13/06
Filed: 1934-08-20
Abstract: 447,726. Cutting plaster-board &c. JOINTLESS WALLS & CEILINGS, Ltd., MACTAGGART, E. F., and MARGETSON, O., 46, Bedford Row, London. Aug. 20, 1934, No. 28604/35. Divided out of 447,541, [Group X]. [Class 31 (i)] [See also Group V] In a machine for cutting sheet material, e.g. plaster-board, into lengths and in which the knife travels with the moving material, the knife has a combined lateral, downward and oscillatory movement. The knife 20 has inclined slots 22 to receive pins 23 on a carrier 24, whereby when the knife is moved laterally by a lever 26 and a link 27 operated by a shaft 25, it also moves downwards. The carrier 24 is pivoted in the machine frame and is simultaneously rocked by a cam 30 on the shaft 25 co-operating with an arm 31. A work support 39 is rocked in unison by toothed segments 42, 43. The shaft 25 is driven by a clutch device and the parts are returned to normal position by springs when the clutch is disengaged. Specification 447,541 is referred to.
Patent GB-1031873-A (GB)
Title: Apparatus for dissolving nuclear materials
Inventor: FAUGERAS PIERRE
IPC: B01F1/00
Filed: 1964-07-10
Abstract: 1,031,873. Dissolving nuclear fuel. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 10, 1964 [July 22, 1963], No. 28630/64. Heading G6R. A subcritical nuclear fuel dissolving apparatus comprises a subcritical dissolving vessel 1 in which the fuel to be dissolved is placed and which is located above a subcritical tank 2 containing a treatment solution comprising an aqueous solution of an acid, e.g. HNO3, the volume of this solution contained in the tank 2 being variable according to the quantity of fuel to be dissolved, a boiler 3 which supplies a mixture of solvent and of steam arising from the water of the treatment solution and which assures the circulation of the mixture, the boiler 3 being situated at a position laterally spaced from and below the tank 2, a liquid/vapour phase separator 4 located above the vessel 1, and pipes such as 9, 10 for connecting the different elements of the apparatus. The vessel 1 terminates in a frusto-conical base and is fitted with a detachable cover for the introduction of the nuclear fuel, its dimensions being adapted to those of the fuel to be dissolved. The tank 2 is preferably flat and of trapezoidal shape. The steam from the boiler 3, as well as nitrous vapours when the solvent is HNO3, forms together with the solution a mixture having a lower sp.gr. than that of the solvent which entrains the latter in the liquid phase. The vessel 1 and the tank 2 are fitted with two tubes 9, 10 which serve to eliminate nitrous vapours, which vapours are oxidized by air injected into the tubes and the resulting oxides condensed in condenser 6 if the temperature is sufficiently low. The oxides which are not condensed in the condenser 6 are sent through a tube 11 into a NaOH absorption column. The steam is separated from the solution within the separator 4, sent to the condenser 6 and then returned to the boiler 3. In order to commence the dissolving process in a rapid and uniform manner, air is injected into the apparatus immediately beyond the outlet of the boiler 3 at 7, this injection being stopped as soon as the circulation has achieved a steady state. The treatment solution is drawn off through a conduit 8 at the foot of the apparatus.
Patent GB-1049771-A (GB)
Title: Synthetic resins
Inventor: KEISER KURT
IPC: C08G59/14
Filed: 1961-08-08
Abstract: Allyl ethers of epoxidized polyolefines are obtained by etherifying an epoxidized unsaturated polyolefine with allyl alcohol or a substituted allyl alcohol.  The etherification may be performed in the presence, as catalyst, of boron trifluoride in ether or acetic acid.  Coating compositions which are air drying comprise the allyl ethers of the invention and, if desired, metallic driers, solvents and ethylenically unsaturated monomers.ALSO:Glass plates are coated by brushing with air-drying compositions comprising an alkyl ether of an epoxidized unsaturated polyolefin, tetralin, cobalt naphthenate and xylene, styrene a -methylstyrene or vinyltoluene.
Patent GB-445547-A (GB)
Title: Improvements in combustion devices for furnaces
IPC: F23N3/08
Filed: 1934-10-06
Abstract: 445,547. Gas burners. DETLOR, R. S., 79, Somerville Avenue, Westmount, Quebec, Canada. Oct. 6, 1934, No. 28690. [Class 75 (i)] [See also Group XII] A device for ensuring the ignition of unburnt combustible gases above the grate of a furnace comprises a constantly burning gas burner arranged in the combustion chamber and normally fed with restricted supplies of air and gas both of which are supplemented during the operation of a blower producing a primary air supply for the furnace and controlled by electrical control means in accordance with the condition of the fire. The burner is mounted on a wall 21 of the combustion chamber 15, Fig. 5, above a bed of fuel 16 on a grate 17 and comprises concentric tubes 22, 25 and 27, Fig. 1. Gas is supplied through the inner tube, natural draught air from an opening 33 through the space between tubes 25 and 27 while the space between the tubes 22 and 25 is connected to a pipe 45 for supplying additional air. The blower is operated electrically under the joint control of a main switch 56, the circuit 47 of a thermostatic furnace control means of a known type and a safety switch associated with the gas burner. If the blower is inoperative, the burner is supplied with a relatively small amount of gas through a leak hole 50 in a gas cock 49 and with air through the opening 33. When the blower motor circuit is energized, the gas cock is fully opened by means of an electromagnet 53 and armature 52 and the operation of the blower causes an additional air supply to pass to the burner through the pipe 45 producing a comparatively large flame for the ignition of the combustible gases. In order to prevent the operation of the blower in the event of the pilot gas flame being extinguished, the burner is provided with a safety switch comprising contacts 65, 68, Fig. 6, adapted to be separated by the action of a bi-metal strip 64 if the heat of the pilot light is removed. The burner may be provided with a bi-metal strip 77 operating a plug 78 with a bore 80 for further reducing the gas supply when the blower is inoperative.
Patent GB-355080-A (GB)
Title: Improvements in or relating to the cooling of internal combustion engines
IPC: F01P3/16
Filed: 1930-09-25
Abstract: 355,080. Cooling bearings. DUCASSE, F., 92, Rue Etienne Dolet, Cachan, Seine, France. Sept. 25, 1930, No. 28723. Convention date, Sept. 25, 1929. [Class 12 (i).] Main bearings of an internalcombustion engine are cooled by admitting the cylinder-cooling water by passages 16 adjacent the bearings 15.
Patent GB-638763-A (GB)
Title: A process for the preparation of esters
Filed: 1947-10-28
Abstract: 1 : 3-Diacyloxy-1-alkenes of the formula <FORM:0638763/IV (b)/1> where R1 and R2 are hydrocarbon or heterocyclic which may be substituted by groups not interfering with the reaction, and R3, R4 and R5 are hydrogen or as R1 and R2, are prepared from a 1 : 1-diacyloxy-2-alkene by heating in presence of an acidic catalyst. The groups R may be, for example, alkyl, e.g. methyl to heptyl, aromatic, e.g. phenyl, tolyl, and benzyl, cycloaliphatic, e.g. cyclohexenyl and cyclohexyl, alkenyl, e.g. vinyl and allyl, aralkenyl, e.g. 2-phenylallyl, alkynyl and heterocyclic such as furfuryl, thienyl and sulpholanyl.  R1 and R2 are preferably lower alkyl, up to 7 carbon atoms.  Specified acidic catalysts are hydrochloric, phosphoric, p-toluenesulphonic and dichloroacetic acids, and zinc and magnesium chlorides and sodium dihydrogen phosphate.  Preferred reaction temperatures are between 70 DEG  and 150 DEG  C., and the reaction may be carried out in vapour or liquid phase; in the latter case an inert solvent, e.g. ether, may be employed.  Preferably, there is present a small amount of the anhydride of the acid from which the acyloxy groups of the di-ester are derived.  The double bond of the diacyloxy alkene may be saturated by hydrogenation in the usual way and then the compound hydrolysed to give the 1 : 3-diol, e.g. trimethylene glycol.  The hydrogenation catalyst, e.g. Raney nickel, should be free from alkali.  In the examples: (1-3) 1 : 1-diacetoxy-2-propene is heated with sulphuric acid in ether, optionally in the presence of acetic anhydride, to give 1 : 3-diacetoxypropene-1, which (5) is hydrogenated to give the p  diacetate of trimethylene glycol; (4) 1 : 1-diacetoxy-2-methyl-2-propene is treated with sulphuric acid to give 1 : 3-diacetoxy-2-methylpropene-1, which (6) is hydrogenated to the diacetate of 2-methyl-1 : 3-propanediol.
Patent GB-236452-A (GB)
Title: Centrifugal process and apparatus for separating particles from fluid streams
IPC: B01D45/14
Filed: 1924-12-01
Abstract: 236,452. Spangenberg, J. P. Dec. 1, 1924. Density separators. - Foreign particles are separated from a fluid in a constricted curved passage 4, attached to another passage 6 of increasing cross-sectional area, and having openings 8 in its outer wall leading to closed collecting receptacles 9. The apparatus is shown in Fig. 1 connected across the smoke flue between the boiler 1 and the chimney 3. Regulating devices 7 are provided and the inlet pipe 5 may be of diminshing cross-sectional area, and the position of the apparatus may be varied. In the modification shown in Fig. 3, the air or smoke passes axially into the fan and is delivered bv the vanes 20 into the constricted passage 21, which is carried round the vane wheels and connected by a diverging passage 22 to the outlet. Openings in the passage 21 lead to the dust collectors 24. The openings may be provided with valves 27, 28, Fig. 4, so that air enters the dust receptacle with the dust through the valve 25 and air leaves the receptacle by the valves 26.
Patent GB-319591-A (GB)
Title: Improvement in process of producing the alpha polymer of vinyl chloride
IPC: C08F14/06
Filed: 1929-09-23
Abstract: 319,591. Du Pont de Nemours & Co., E. I., (Assignees of Lawson, W. E., and Werntz, J. H.). Sept. 22, 1928, [Convention date]. The alpha polymer of vinyl chloride free from the beta polymer is produced by heating vinyl chloride in the presence of a catalyst such as benzoyl peroxide, ozone, and barium peroxide to a temperature of more than 80‹ C. and preferably in the form of a solution in an inert organic solvent, and continuing the heating until the desired degree of conversion is obtained. The product may be used for making solid articles or as an ingredient in coating-compositions as it is compatible with drying oils and is soluble in many solvents. The polymerization is effected preferably at 90-120‹ C. in the presence of solvents in sealed tubes. In the examples the polymerization is effected with (1) ethylene dichloride (solvent) and benzoyl peroxide; (2) absolute methanol which has been treated with ozone for two hours; (3) chlorbenzene and benzoyl peroxide; (4) ethyl acetate and benzoyl peroxide. Other solvents such as acetone, benzene and toluene may be used. Specification 319,597 is reffered to.
Patent GB-1154702-A (GB)
Title: Treatment of Textile Materials
Inventor: GOLDBERG ALAN AUGUST
IPC: D06M15/53
Filed: 1965-07-07
Abstract: 1,154,702. Polyethylene glycol derivatives. PRECISION PROCESSES (TEXTILES) Ltd. 7 July, 1966 [7 July, 1965], No. 28859/65. Heading C3R. [Also in Division D1] Polyethylene glycol derivatives used in the treatment of textiles are produced in Example 1 by reacting polyethylene glycol 1500 with thionyl chloride to produce polyethylene glycol 1500 dichloride which is then reacted with hexamethylene diamine, in Example 7 by treating polyethylene glycol 1500 with a solution of sodium metavanadate in nitric acid to produce polyethylene glycol dicarboxylic acid which is converted to polyethyleneglycol dicarboxylic acid dichloride by reaction with thionyl chloride, and in Example 10 by reacting polyethylene glycol with sebacoyl bis-chloride.
Patent GB-1385177-A (GB)
Title: Method of and assembly for use in anchoring a stay in the ground and stay anchorages thus produced
IPC: E02D5/76
Filed: 1972-05-16
Abstract: 1385177 Anchoring stays SONDAGES INJECTIONS FORAGES SIF ENTERPRISE BACHY 16 May 1972 [2 June 1971] 28886/74 Divided out of 1384744 Heading F2H [Also in Division E1] To anchor a stay 12 in a drilled bore in ground 2, e.g. to retain sheet piles, a protective tube 3 having a stay 12 such as a bundle of wires 13 fastened therein at the inner (leading) part 4 of the tube by a fastening material 31 is inserted in the bore, an annular space 19 between the bore wall and the part 4 of the tube 3 is isolated from the outside by an annular seal 11, and a setting composition is injected from the interior of the tube 3 through holes 7 in the tube into the space 19 and the surrounding ground 20 to anchor the tube 3 in the ground. As shown, an injection tube 30 extends the whole length of the protective tube 3, being secured, e.g. by welding to its inner wall and being embedded in the material 31 within the part 4 of the tube 3. Holes 32 in the tube 30 correspond with the holes 7 in the tube 3. Each hole 7 is covered by a piece of foil 8 under an elastic sleeve 9 to form a non-return valve. The tube 3, of steel or plastics, may have a smooth outer surface, or have helical or other external ribs or projections. The seal 11 may be a resilient washer, or an inflatable annular tube. A head member 22 is connected to the tube 3 by a sleeve 23 and a sealing joint 24. A second injection tube 33 opens through the wall of the tube 3 into the annular space 18 axially outwards of the seal 11 to allow this space 18 to be filled with grout prior to injection of the setting composition into the space 19. In a modification (Fig. 5, not shown) injection of the setting composition is by a flexible injection tube (41) opening into the space between two pistons (43) fixed to the leading end thereof, the pistons (43) being slidable in a guide tube (40) secured in the protective tube 3. The tube (41) is moved to bring the pistons on either side of each hole 7 in turn.
Patent GB-152346-A (GB)
Title: Improvements in roller cages for roller bearings
IPC: F16C33/54
Filed: 1920-10-13
Abstract: 152,346. Sandberg, J. T. Oct. 13, 1919, [Convention date]. Roller bearings.-A cage for roller bearings comprises spacing-pieces 7 secured to side rings 4, the parts 7 being provided with offsets 12 having line contact with the sides of the rollers 3 near the centre, so as to guide the rollers in the direction of movement, but to allow a tilting movement of the rollers in the other direction. The side rings 4 are preferably arranged to one side or the other of the centre line of the rollers, and the parts 7 may be secured to them either rigidly or pivotally by means of rivets or pins, various forms of connexions being shown. In one such form, the spacing pieces are adapted to have pivotal and endwise movement about pins riveted to the side rings. The side rings may be dispensed with, the offsets 12 being connected as shown in Fig. 5. The cage is formed from sheet-metal, but may also be made of wire. Specification 133,005 is referred to.
Patent GB-1155921-A (GB)
Title: Electrophotographic apparatus
IPC: G03G15/28
Filed: 1966-06-28
Abstract: 1,155,921. Electro-photographic apparatus. ADDRESSOGRAPH-MULTIGRAPH CORP. June 28, 1966 [July 28, 1965], No.28986/66. Heading G2H. An electro-photographic copier using a photosensitive member has a charging assembly selectively operable in either a continuous mode or an intermittent mode, a drive assembly for driving the member at at least two different speeds, and a control for selecting the charging mode in dependence on the speed at which the member is moved. As shown a photo-conductive web 30 is passed over an earthed platen 46 where it is electrostatically charged by a movable corona charging assembly 52 and selectively imagewise exposed using either a full frame exposure unit 48 or a modulated flying light spot unit 50; the image thus formed is developed by a magnetic brush apparatus 54 and fixed by a heated platen 56, and the imaged web severed by a knife 62. When the flying spot exposure unit 50 is used, the charging assembly 52 is moved from the broken line position of Fig. 8 to the opposite end of the platen 46 optionally charging the web as it passes, and then back to the full line position of Fig. 8 charging the web as it passes; the web is then passed slowly across the platen 46 past the charging assembly 52 and exposure unit 50, the potential applied to charging assembly being pulsed by the opening and closing of contacts (356) by a rotating cam driver by a motor (358). In full frame exposure, the web is held stationary on platen 46 during charging and exposure, the charging being effected by one or more reciprocal movements of charging assembly 52, to and from its broken line position, over the web; to compensate for the fact that the web is transported past the charging assembly 52 and fixing platen 56 at a faster rate than in the case of flying spot exposure, the potentials applied to charging assembly 52 and the heaters (314), (316) and (318) in platen 56 are increased, and fixing is supplemented by a heater 60. The toner in the development station 54 is replenished in accordance with the length of web passing through the apparatus from a toner replenisher (265) operated by a cam (357) on a shaft (120) of the web feeding assembly. The web is fed through the apparatus by a series of cogwheels driven by either of motors (82) and (84), via clutches (102) or (132), depending on the mode of exposure. The charging assembly 52 is mounted on a pair of lead screws (192), (194) driven by a two-way motor via a clutch/brake assembly (206); the assembly 52 is fitted with a cam (220) which engages appropriately the assembly (206) according to the mode of exposure, so that the assembly 52 is arrested in the required positions. A circuit for controlling the apparatus is shown.